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RWHP gains of adding longtubes to SC setup?

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Old 06-06-2016, 10:16 PM
  #61  
Unreal
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Would love to do ARH, but convincing Steve to discount them enough to make it possible to buy with donations would be a rough one.
Old 06-06-2016, 10:21 PM
  #62  
schpenxel
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True.. those things are expensive

(but nice)

Last edited by schpenxel; 06-06-2016 at 10:21 PM.
Old 06-07-2016, 12:50 AM
  #63  
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Originally Posted by Nosferatu333
The sound change going to lts is worth it alone. It's incredible if your into that thing. Couple that with the power increase makes it a no brainer for me. Going further the weight reduction from the cast manifolds makes it an all around must have upgrade. They look great as well. Get the damn lts.
Don't let money influence you.
The kit cost about 6k add install and tune, clutch and your looking 10kish. Great power added for sure but offset the weight penalty of the kit. All things considered the price of lts isn't bad.
Originally Posted by timmyZ06
I can assure you, that the sounds of the long tubes on a SC car alone worth it It SCREAMMMMM!!!!!

It sucks that NC is that far, cuz i would had take for a spin....

X 100

I have 2in LTs, no cats, Si Trim, NPP. Sounds amazing at WOT.

Last edited by RMcoolX; 06-07-2016 at 01:01 AM.
Old 06-07-2016, 12:59 AM
  #64  
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If I was buying again I would no doubt buy ARH.
Old 06-07-2016, 07:40 AM
  #65  
MBB
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I had ARH on my last Vette and I have Super Pros on this one. The ARHs sounded more exotic, the LGs sound more American...best way I can describe it.
Old 06-07-2016, 09:43 AM
  #66  
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You don't really do LTs for HP gains as much as you do them for torque gains. 20-30 ft/lbs. is a noticeable difference.
Old 06-07-2016, 12:39 PM
  #67  
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mmmm torque
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Old 06-07-2016, 12:47 PM
  #68  
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Originally Posted by schpenxel
True.. those things are expensive

(but nice)
are you able to run a mass air tune with the stock 05 mass air and DPE 2.5 map sensor without having to redo the whole tune?tuner didn't seem to want to use my 2.5 map sensor that I bought specifically to run Dash Logic.was the tuner getting lazy or did he have a legitimate reason for not wanting to do this?he also I believe gave me a song and dance about not being able to run my Racetronix harness because it was back feeding the pump.not sure if he meant bap or fuel pump.tia

Last edited by irok; 06-07-2016 at 12:57 PM.
Old 06-07-2016, 12:54 PM
  #69  
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Originally Posted by irok
are you able to run a mass air tune with the stock 05 mass air and DPE 2.5 map sensor without having to redo the whole tune?tuner didn't seem to want to use my 2.5 map sensor that I bought specifically to run Dash Logic.was the tuner getting lazy or did he have a legitimate reason for not wanting to do this?tia
The number of stupid things I hear about tuners saying boggles my mind. I need to open a tuning business. Anyways, I digress...

To answer your question--really what you're asking are a few separate things. I'm assuming the tune is MAF only right now. Without seeing it that is just a guess.

To the "are you able to run a mass air tune with the stock 05 MAF" part. The short answer is yes. The long answer is it is more limited than the newer style MAF's (somewhere in the 600rwhp range), but there's no reason it won't work just fine up until then (assuming it doesn't crack, which has been known to happen..)

To the "DPE 2.5 map sensor without having to redo the whole tune" part. All he has to do to install the new MAP is change two values and plug it in. It's literally less than 2 minutes to do it all. It would be the proper way to do it anyways, even in MAF only, so that injector flow rate is properly calculated.

And to the "was the tuner getting lazy or did he have a legitimate reason for not wanting to do this" part.. not much doubt on this one, he was either being lazy or ignorant. Or both.

Hopefully that helps.
Old 06-07-2016, 01:10 PM
  #70  
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Originally Posted by NormWild
You don't really do LTs for HP gains as much as you do them for torque gains. 20-30 ft/lbs. is a noticeable difference.
I make something like 20 more tq than hp
Old 06-07-2016, 01:19 PM
  #71  
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Originally Posted by schpenxel
The number of stupid things I hear about tuners saying boggles my mind. I need to open a tuning business. Anyways, I digress...

To answer your question--really what you're asking are a few separate things. I'm assuming the tune is MAF only right now. Without seeing it that is just a guess.

To the "are you able to run a mass air tune with the stock 05 MAF" part. The short answer is yes. The long answer is it is more limited than the newer style MAF's (somewhere in the 600rwhp range), but there's no reason it won't work just fine up until then (assuming it doesn't crack, which has been known to happen..)

To the "DPE 2.5 map sensor without having to redo the whole tune" part. All he has to do to install the new MAP is change two values and plug it in. It's literally less than 2 minutes to do it all. It would be the proper way to do it anyways, even in MAF only, so that injector flow rate is properly calculated.

And to the "was the tuner getting lazy or did he have a legitimate reason for not wanting to do this" part.. not much doubt on this one, he was either being lazy or ignorant. Or both.

Hopefully that helps.
checked and car is mass air tune only. he did install 2.5 map but car breaking down on restart as he made no tuning adjustments for it.he said it was showing 20 something?in HPTune .added something to my original post about Racetronix harness.just what I suspected.will be adding card style maf .car at 650 rwhp.I don't think he is ignorant just that he wanted to get working on his own car to get to track on weekend.I only dropped $18,000. in his shop on 2 cars that week

Last edited by irok; 06-07-2016 at 11:34 PM.
Old 06-07-2016, 03:27 PM
  #72  
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Tuning industry is AMAZING.

Local car tune had the octane maps all hacked with -10 to -15 timing across the board, knock sensors turned off, and so many other bad things it was scary. The fact that people pay $500+ for these pure crap tunes is mind boggling.
Old 06-07-2016, 03:33 PM
  #73  
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Originally Posted by Unreal
Tuning industry is AMAZING.

Local car tune had the octane maps all hacked with -10 to -15 timing across the board, knock sensors turned off, and so many other bad things it was scary. The fact that people pay $500+ for these pure crap tunes is mind boggling.
I'm barely even surprised anymore. I always wonder how many pro tuners are actually on HPT forum just under a different name asking beginner questions..

$500 a pop, give me one car a day and I'll be fine. It's a wonder more don't go boom with the crap all these guys with an interface and laptop that call themselves tuners put out.

Though I guess we're starting to see the real results on the gen 5 stuff. DI isn't quite so easy if you don't know what you're doing.

Last edited by schpenxel; 06-07-2016 at 03:34 PM.
Old 06-07-2016, 03:41 PM
  #74  
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These are the guys tuning all of those cars

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Old 06-07-2016, 03:42 PM
  #75  
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Hahaha. Looks like a good logo to me!
Old 08-21-2016, 01:42 PM
  #76  
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Got some ARH long tubes on the way. I'll get you the before and after graph.
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Old 08-21-2016, 01:58 PM
  #77  
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Awesome, thanks.

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Old 08-28-2016, 01:54 PM
  #78  
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Originally Posted by LSX228R
Got some ARH long tubes on the way. I'll get you the before and after graph.
Really interested to see you're results. I keep debating switching from LS7 manifolds to LTs. if you're results are good, I'll switch over when the car goes in for another pulley change end of next month.
Old 08-28-2016, 02:06 PM
  #79  
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Should have everything done in 2-3 weeks. Still waiting on the parts to get here.
Old 08-28-2016, 03:17 PM
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Curious here too.. doubt I'll ever spend what ARH wants for those but maybe I'd do one of the cheaper brands.


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